source: trunk/src/binutils/bfd/i386aoutemx.c@ 524

/* BFD back-end for emx a.out binaries, derived from i386aout.c and aout-target.h
   Copyright 1990, 1991, 1992 Free Software Foundation, Inc.

This file is part of BFD, the Binary File Descriptor library.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "libaout.h"

static boolean MY(set_sizes) ();
#define MY_backend_data &MY(backend_data)

static const bfd_target *MY(object_p) ();
#define MY_object_p             MY(object_p)

static CONST struct aout_backend_data MY(backend_data) = {
  0,                            /* zmagic contiguous */
  0,                            /* text incl header */
  0,                            /* entry is text address */
  0,                            /* exec_hdr_flags */
  0,                            /* text vma? */
  MY(set_sizes),
  1,                            /* exec header not counted */
  0,                            /* add_dynamic_symbols */
  0,                            /* add_one_symbol */
  0,                            /* link_dynamic_object */
  0,                            /* write_dynamic_symbol */
  0,                            /* check_dynamic_reloc */
  0                             /* finish_dynamic_link */
};

#include "aout-target.h"

/*
 * Finish up the reading of an a.out file header
 */
static const bfd_target *
MY(object_p) (abfd)
  bfd *abfd;
{
  struct external_exec exec_bytes;      /* Raw exec header from file */
  struct internal_exec exec;            /* Cleaned-up exec header */
  const bfd_target *target;
  size_t org_pos, add;

  org_pos = bfd_tell (abfd);
  (void)_fseek_hdr(bfd_cache_lookup(abfd));
  add = bfd_tell (abfd) - org_pos;
  if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)
      != EXEC_BYTES_SIZE)
  {
    if (bfd_get_error () != bfd_error_system_call)
      bfd_set_error (bfd_error_wrong_format);
    return 0;
  }

  exec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info);

  if (N_BADMAG (exec))
    return 0;

  NAME(aout,swap_exec_header_in)(abfd, &exec_bytes, &exec);
  exec.emx_add = add;
  target = NAME(aout,some_aout_object_p) (abfd, &exec, MY(callback));
  return target;
}